This paper describes the opinion retrieval system for TREC 2007 blog track. This paper focuses on two components of the system. One component is important content block detection ...
This work details the experiments carried out using the Indri search engine for the ad hoc retrieval task in the TREC 2007 Million Query Track. We investigate using proximity feat...
In this paper, two multimodal systems for the tracking of multiple users in smart environments are presented. The first is a multiview particle filter tracker using foreground, c...
This paper presents a visual particle filter for tracking a variable number of humans interacting in indoor environments, using multiple cameras. It is built upon a 3-dimensional,...
In this paper the acoustic event detection and classification system that has been developed at Athens Information Technology is presented. This system relies on the use of severa...